Many people love seals and sea lions, and it's easy to see why: they’re playful, adorable, and quite photogenic. But what is the difference between seals and their cousins the sea lions? Both have fins for feet, making them pinnipeds. But the sea lions' have long fins covered with skin, while seals swim with short and stubby fins. Also, sea lions have small flaps covering their outer ears—seals do not. Try to spot these differences as you flip through the slideshow!